MINEOLA - ? The critical vote on a new Nassau Coliseum is just four days away and the battle over building it played out in the News 12 Long Island studios last night.

The outcome of a vote on the $400 million referendum vote to borrow money from taxpayers to build the Coliseum will be a defining moment on Long Island.

County Executive Ed Mangano was among the guests on the show last night and spoke of the significance of a new Coliseum and the impact on Long Island if one wasn't built.?It comes down to do we build on what we have and create a sports entertainment destination or face the possibility of a closed arena,? said Mangano.

Islanders owner Charles Wang also spoke out about keeping the Islanders on Long Island and said if it doesn?t happen, it will be a missed opportunity.

The re-development project, which would include a new arena and a minor league ballpark, is said to cost the average Nassau taxpayer $58 a year for 30 years.

However, county officials say the true cost would be just under $14 dollars with the revenue that would come in. Mangano says residents will eventually make money on the deal.

The fate of the controversial project that could bring thousands of jobs to the Island will be decided on August 1 when residents head to the polls.

Nassau Coliseum: The Big Vote Part 1Nassau Coliseum: The Big Vote Part 2

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Polling LocationsVoter InformationNassau Coliseum: The Big Vote - Video Timeline